CN208793428U - A kind of Anti-falling-off nut component and tolerance regulator - Google Patents
A kind of Anti-falling-off nut component and tolerance regulator Download PDFInfo
- Publication number
- CN208793428U CN208793428U CN201821529139.5U CN201821529139U CN208793428U CN 208793428 U CN208793428 U CN 208793428U CN 201821529139 U CN201821529139 U CN 201821529139U CN 208793428 U CN208793428 U CN 208793428U
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- snap ring
- nut
- bolt
- wall
- ring
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Abstract
The utility model provides the nut assembly and tolerance regulator of a kind of anti-dropout, including the first nut, is provided with internal screw thread, and an annular groove is provided in the outside wall surface of first nut；With the snap ring of first nut coaxial arrangement, the snap ring is set on the outer wall of first nut, circumferencial direction on the inner wall of the snap ring along the snap ring is provided with protrusion, and the protrusion is suitable for being inserted into the annular groove on the outer wall of first nut；The limitation movable device for being mounted on the snap ring on mounting object is equipped on the snap ring；It is provided with rotation-preventing mechanism between first nut and snap ring, for preventing the relative rotation of first nut and snap ring.The nut assembly of tolerance regulator described herein, when the snap ring is set in outside the nut, the protrusion is inserted into the annular groove, can effectively prevent the disengaging of snap ring and the first nut.
Description
Technical field
The utility model relates to technical field of automobile manufacture, and in particular to a kind of Anti-falling-off nut component and tolerance are adjusted
Device.
Background technique
Automobile is when being assembled, the quality and safety of the measure of precision that is connected between each component, each clamping plate to car body
Property has highly important influence.By taking the inner and outer plates of car door and car body as an example, such as cause between plate because of contiguity imprecision
Linking generate gap and then not only will affect beauty can also have great security risk.Therefore, how to guarantee each component
Between the accuracy that is connected, this is a key point of automobile manufacture field.
In the process of automobile component, inevitably there is certain tolerance, this to need between all parts
Tolerance regulating device is used to be connected, the function using tolerance regulating device clearance-adjustable meets different tolerance dimensions
Installation requirements, to promote measure of precision.While guaranteeing precision, the safety of auto parts is also most important, if
The part of tolerance regulating device itself is fallen off, then can also cause a hidden trouble to the safety of vehicle, therefore how to explore one kind
Easy to operate, safe and reliable tolerance regulator is this field technical problem urgently to be solved.
Utility model content
The technical issues of what the application solved is how to explore a kind of easy to operate, safe and reliable tolerance regulator, into
And provide a kind of not easily to fall off, simple tolerance regulator of structure.
The application solves the technical solution that above-mentioned technical problem uses are as follows:
A kind of nut assembly of anti-dropout, comprising: the first nut is provided with internal screw thread, in the outer wall of first nut
An annular groove is provided on face；With the snap ring of first nut coaxial arrangement, the snap ring is set in first spiral shell
On female outer wall, the circumferencial direction on the inner wall of the snap ring along the snap ring is provided with protrusion, and the protrusion is suitable for
It is inserted into the annular groove on the outer wall of first nut；It is equipped on the snap ring for the snap ring to be mounted on installation
Limitation movable device on object, the limitation movable device are limiting the snap ring relative to mounting object progress along certainly
It is suitable for that the snap ring is pasted movement close or remote from the mounting object in the axial direction while body axial-rotation,
The snap ring is equipped with stop bit close to the mobile path of the mounting object；It is provided between first nut and snap ring
Rotation-preventing mechanism, for preventing the relative rotation of first nut and snap ring.
The protrusion is provided with multiple, and the axially symmetric setting relative to the snap ring.
The rotation-preventing mechanism includes: that the axis direction on the outer wall of first nut along first nut is arranged
Hexagonal structure, and along the hexagonal structure of snap ring axis direction setting on the inner wall of the snap ring；First nut
Hexagonal structure on outer wall is suitable in the hexagonal structure for being inserted into the inner wall of the snap ring.
On the inner wall of the snap ring and the step for being suitable for fastening is respectively arranged on the outer wall of first nut
Structure limits first nut and carries out relative to the snap ring far from the movement on the mounting object direction.
The snap ring is plastic clasp.
The limitation movable device includes: rotary limiting structure, the bullet being fixedly connected including at least two with the snap ring
Item, the spring extend from the snap ring to the direction far from the snap ring, and the extending direction of the spring is located substantially at described
In the axial direction of snap ring, the mounting hole for being inserted into the spring is correspondingly arranged on the mounting object；V-arrangement elastic slice, setting
In each one end of the spring far from the snap ring, the opening direction and the snap ring of the V-arrangement elastic slice are far from the installation
The direction of object is consistent, and the opening of the V-arrangement elastic slice is suitable for being stuck in the mounting hole backwards to the side of the snap ring.
A kind of tolerance regulator of the nut assembly comprising the anti-dropout, further includes: the first bolt, be equipped with it is described
The external screw thread that the internal screw thread of first nut matches is suitable for screwing in first nut, in the axis of first bolt
On be provided with the hollow structure for penetrating through the both ends of the surface of the bolt；Resilient insert is mounted on the hollow structure of first bolt
It is interior, installation passage is provided in the resilient insert, the installation passage is arranged along the axis direction of the bolt；Second spiral shell
Mother, is fixedly mounted relative to the mounting object, and the internal screw thread direction of second nut is opposite with first nut；Second
Bolt is suitable for driving first bolt synchronous to rotate through resilient insert described in the installation passage and swelling, and described second
Bolt is advantageously by screwing into second nut.
When approach axis and the snap ring when first bolt screws in first nut are close to the mounting object
Moving direction it is consistent；First bolt one end opposite with the approach axis is provided with ring edge.
The side of the ring edge towards the snap ring is provided with stop block；Described one end towards the ring edge
It is arranged jagged, the stop block is suitable for being placed in the notch.
The resilient insert is quadrangle ring set, and four angles of the quadrangle ring set are set as arc-shaped transition angle, described
The center of each edge of quadrangle ring set curves inwardly to form arc.
The advantages of nut assembly and tolerance regulator of anti-dropout described herein, is:
It is recessed to be provided with an annular on the outer wall of the first nut for the nut assembly of tolerance regulator described herein
Slot is provided with protrusion on the inner wall of the snap ring accordingly, and when the snap ring is set in outside the nut, the protrusion is inserted
Enter in the annular groove, the disengaging of snap ring and the first nut can be effectively prevent, also, using the excellent of annular groove in the application
Point is, the insertion orientation on circumferencial direction need not be considered in the snap ring insertion process, is inserted into arbitrary angle
Protrusion to be placed in the annular groove, influenced by factors such as machining tolerances smaller.
In order to make anti-dropout described in the utility model nut assembly and tolerance regulator technical solution it is clearer
Understand, below in conjunction with specific drawings and examples, the present invention will be further described in detail.
Detailed description of the invention
It is the structural schematic diagram of the first nut described in the utility model for being provided with annular groove as shown in Figure 1；
It is the structural schematic diagram of snap ring described in the utility model as shown in Figure 2；
It is the sectional structure chart in the face A-A in Fig. 4 as shown in Figure 3；
It is the sectional structure chart in the face B-B in Fig. 4 as shown in Figure 4；
It is the structural schematic diagram of tolerance regulator described in the utility model as shown in Figure 5；
It is the structural schematic diagram of the first bolt described in the utility model as shown in Figure 6；
It is the structural schematic diagram of resilient insert described in the utility model as shown in Figure 7；
Wherein, appended drawing reference are as follows:
The first bolt of 1-；The first nut of 2-；21- annular groove；3- snap ring；31-V shape elastic slice；32- protrusion；33- first gear
Piece；34- second flap；4- resilient insert.
Specific embodiment
Present embodiments provide for a kind of nut assembly of anti-dropout and tolerance regulators, wherein the nut assembly is used for
Nut is fixed on mounting object, the nut assembly includes the first nut 2, as shown in Figure 1, first nut 2 is equipped with
Internal screw thread, the internal screw thread of the first nut 2 described in present embodiment are levogyrate inner thread, i.e., the external screw thread of bolt is along described first
The screw thread of nut 2 can enter first nut 2 when rotating counterclockwise.The outer wall of first nut 2 is along nut axis direction
On at least part be hexagonal structure, on the outer wall of first nut 2 and peripherally disposed have an annular recessed
Slot 21；As preferred embodiment, the outer wall of the first nut 2 is by hexagonal structure section and circular ring structure described in present embodiment
Duan Zucheng, the diameter of the circular ring structure section are less than the internal diameter of the hexagonal structure section, form step structure.
Snap ring 3, as in Figure 2-4, as preferred embodiment, snap ring 3 described in present embodiment is plastic clasp
3, at least part of the inner wall of the snap ring 3 on 3 axis direction of snap ring is hexagonal structure, is located at institute in present embodiment
The wherein one end for stating 3 both ends of snap ring is connecting pin, and the inner wall of the connecting pin is provided in round structural sections and first nut
2 circular ring structure section matches, and the side of the connecting pin is provided with hexagonal structure section in the circular configuration section,
Size and the hexagonal structure section of 2 outer wall of the first nut match, and form the Step-edge Junction opposite with 2 outer wall of the first nut
Structure；During installation, first nut 2 is along the inner wall that first direction is inserted into the snap ring 3,2 outer wall of the first nut
Step structure fastens with the step structure on 3 inner wall of snap ring, prevents the disengaging of the first nut 2 in a first direction.This
Application on the inner wall of the snap ring 3 and it is peripherally disposed have multiple raised 32, the multiple raised 32 corresponding spiral shell
Annular groove 21 on female outer wall is arranged, and is suitable for being inserted into the annular groove 21 respectively；Protrusion described in present embodiment
32 are arranged on the hexagonal structure of the inner wall of the connecting pin of the snap ring 3.It is the multiple as preferred embodiment
When protrusion 32 is inserted into the annular groove 21, each protrusion is located axially at the wall surface and the ring at first direction rear
The groove face of connected in star 21 is inconsistent, falls so as to more effectively put anti-avulsion.
It is equipped on the snap ring 3 for the snap ring 3 to be mounted on the limitation movable device on mounting object, the card
It is installation end that ring 3, which is located at one end opposite to the first direction,；The rotary limiting structure in present embodiment, including extremely
Few two springs being fixedly connected with the snap ring 3, as preferred embodiment, the spring is relative to the snap ring 3
Axis direction is symmetrical arranged.The spring extends from the snap ring 3 to the direction far from the snap ring 3, the extension of the spring
Direction is located substantially in the axial direction of the snap ring 3, and the peace for being inserted into the spring is correspondingly arranged on the mounting object
Hole is filled, mounting object described in present embodiment is mounting plate, and the mounting hole is arranged through two sides of the mounting plate；
As preferred embodiment, spring described in present embodiment is extended outwardly by the end face of the installation end of the snap ring 3, and is leaned on
The edge setting of the end face of the nearly installation end, the spring are extending axially outwardly direction axially vertical described in Shi Yu
On gradually to far from axially direction tilt, i.e., to a certain extent to far from 3 central axis of snap ring direction be bent, consequently facilitating
Engaging of the spring in mounting hole.When the spring is inserted into the mounting hole, the hole wall phase of the spring and the mounting hole
Contact is axially rotated to limit the snap ring 3 along itself, but the spring can be slided along the mounting hole, thus real
The existing snap ring 3 is pasted the movement close or remote from the mounting object in the axial direction.
As preferred embodiment, the limitation movable device further includes being arranged in each spring far from the card
The V-arrangement elastic slice 31 of one end of ring 3, the opening direction of the V-arrangement elastic slice 31 and the direction of the snap ring 3 far from the mounting object
I.e. first direction is consistent, and the V-arrangement elastic slice 31 is suitable for being inserted into the mounting hole, and the open card of the V-arrangement elastic slice 31
In the mounting hole backwards to the side of the snap ring 3, when the snap ring 3 is moved far from the mounting object, the spring is drawn
The V-arrangement elastic slice 31 is moved, the opening of the V-arrangement elastic slice 31 is stretched, and generates screen resilience, and then can be by the spring to described
The biasing force of the application opposite direction of snap ring 3.V-arrangement elastic slice described in present embodiment 31, spring and snap ring 3 are integrally formed, and have knot
The advantages of structure is simple, is convenient for operation.
It is equipped with stop bit on the path that the snap ring 3 is moved close to the mounting object, exists for terminating the snap ring 3
Movement in this direction, in present embodiment, the end face of the installation end of the snap ring 3 is suitable for contradicting with the mounting object,
Reach the stop bit when the end face of the installation end of the snap ring 3 and the mounting object contradict, as selectable reality
Mode is applied, the component of other backstops can also be set on the path, for preventing the continuing to move in this direction of snap ring 3.
The tolerance regulator is additionally provided with as shown in figure 5, on the basis of the nut assembly: the first bolt 1, such as
Shown in Fig. 6, first bolt 1 is equipped with the external screw thread to match with the internal screw thread of first nut 2, be suitable for along with it is described
The opposite second direction of first direction, i.e., moving direction when the described snap ring 3 is close to the mounting object are inserted into first spiral shell
In mother 2 and opposite direction is as screwing out (as shown in Fig. 5 dotted portion) in first nut 2, separate in first bolt 1
One end of first nut 2, that is, the one end being located on first direction are equipped with stop mechanism, are arranged on the axis of the bolt
There is the hollow structure for the both ends of the surface for penetrating through the bolt.As preferred embodiment, the stop mechanism is ring edge.
Resilient insert 4 is arranged in the resilient insert 4 as shown in fig. 7, being mounted in the hollow structure of the bolt
There is installation passage, the installation passage is arranged along the axis direction of the bolt；As preferred embodiment, the elasticity is embedding
Part 4 is quadrangle ring set, and four angles of the quadrangle ring set are set as arc-shaped transition angle, each edge of the quadrangle ring set
Center curve inwardly to form arc, the resilient insert 4 is suitable for using nylon, rubber material etc..
In addition, the tolerance regulator is additionally provided with: the second nut is fixedly mounted relative to the mounting object, described
The hand of spiral of second nut and first nut 2 are on the contrary, be dextrorotation internal screw thread, i.e., the external screw thread of bolt is along first spiral shell
The screw thread of mother 2 can enter second nut when rotating clockwise.
Second bolt is suitable for driving first bolt 1 same through resilient insert 4 described in the installation passage and swelling
Step rotation, second bolt is advantageously by screwing into second nut.
It is equally used as preferred embodiment, the direction of the ring edge towards the snap ring 3 is provided with stop block；Institute
It states and is provided with fixed strip on the end face of the connecting pin of snap ring 3, be arranged on the fixed strip jagged, the stop block is suitable for
It is placed in the notch by rotation.Notch on the fixed strip is as shown in figure 3, being located on circumferencial direction for the notch is set
Be equipped with first flap 33 and second flap 34, wherein the second flap 34 along the circumferential direction on width be less than first flap
33, the elasticity of the second flap 34 is greater than the first flap 33, the fixed block pass through when rotated second flap 34 into
Enter in the notch, and stop operating when reaching the second flap 34, the setting of the fixed block and fixed strip can be in spiral shell
Bolt plays the role of backstop on direction of rotation.
The course of work of nut assembly described in present embodiment and the tolerance regulator comprising the component are as follows:
Snap ring 3 and the first nut 2 are assembled, i.e., by the first nut 2 along first direction set to the snap ring 3, at this point, institute
It states protrusion 32 on 3 inner wall of snap ring to be inserted into the annular groove 21 on 2 outer wall of the first nut, plays anti-back, anti-dropout
Effect.The spring of snap ring 3 is inserted into the mounting hole of the mounting object, realizes snap ring 3 and the first nut 2 on mounting object
Fixation；First bolt 1 is mounted in first nut 2.
Apply external force by the second bolt be inserted into the first bolt 1 in resilient insert 4 installation passage in and rotate, the bullet
Property inserts 4 be located between the inner wall and the second bolt outer wall of 1 hollow structure of the first bolt, and be in swelling state.Work as rotation
When the second bolt, 1 synchronous rotary of the first bolt can be driven under the action of frictional force, rotates clockwise the second spiral shell at this time
Bolt drives first bolt 1 to rotate clockwise, since the direction of rotation of the first nut 2 has been limited, the first bolt 1
It is screwed out relative to first nut 2, the spacing of the two continues to increase.
First nut 2 is contradicted with the mounting object, when reaching stop bit, is continued to external force and is rotated clockwise the
Two bolts, second bolt move ahead through the installation passage and finally through the second nut, are mounted on second nut
On.
At this time if you need to further adjust spacing, rotation second bolt i.e. counterclockwise, and then band need to be only reversely rotated
Moving first bolt 1, rotation, first bolt 1 screw in first nut 2 counterclockwise relative to first nut 2,
The two axial spacing reduces, and is finally reached target position.
Tolerance regulator described in present embodiment can be used for a variety of occasions, and tolerance regulator is mounted on institute as will be described
It states on mounting plate, second nut can be realized relatively fixed with the mounting plate by modes such as welding, and the first bolt is then
For stationary phase accessory, applies external force at this time and be inserted into the second bolt in the installation passage of the resilient insert 4 in the first bolt 1 simultaneously
Rotation, until first nut 2 is contradicted with the mounting object, second bolt can be pacified by continuing the second bolt of rotation
It is filled on second nut, as caused gap excessive because of tolerance between discovery phase accessory and predeterminated position in assembling process,
Second bolt, further progress adjustment can be reversely rotated.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the protection scope of the utility model patent should be subject to the claims.
Claims (10)
1. a kind of nut assembly of anti-dropout characterized by comprising
First nut, is provided with internal screw thread, and an annular groove is provided in the outside wall surface of first nut；
With the snap ring of first nut coaxial arrangement, the snap ring is set on the outer wall of first nut, in the card
Circumferencial direction on the inner wall of ring along the snap ring is provided with protrusion, and the protrusion is suitable for being inserted into the outer of first nut
In annular groove on wall；
The limitation movable device for being mounted on the snap ring on mounting object, the limitation activity are equipped on the snap ring
Mechanism is suitable for the snap ring in axis while the limitation snap ring is carried out relative to the mounting object along itself axial-rotation
The movement close to or far from the mounting object is carried out on direction, in the snap ring path mobile close to the mounting object
It is equipped with stop bit；
It is provided with rotation-preventing mechanism between first nut and snap ring, for preventing the opposite rotation of first nut and snap ring
Turn.
2. nut assembly according to claim 1, which is characterized in that the protrusion be provided with it is multiple, and relative to described
The axially symmetric setting of snap ring.
3. nut assembly according to claim 1, which is characterized in that the rotation-preventing mechanism includes: in first nut
Outer wall on along first nut the hexagonal structure that is arranged of axis direction, and along snap ring axis on the inner wall of the snap ring
The hexagonal structure of line direction setting；Hexagonal structure on the outer wall of first nut is suitable for being inserted into the inner wall of the snap ring
The hexagonal structure in.
4. nut assembly according to claim 2, which is characterized in that on the inner wall of the snap ring and first nut
Outer wall on be respectively arranged with the step structure for being suitable for fastening, limit first nut carried out relative to the snap ring it is remote
From the movement on the mounting object direction.
5. nut assembly according to claim 1 to 4, which is characterized in that the snap ring is plastic clasp.
6. nut assembly according to claim 5, which is characterized in that the limitation movable device includes:
Rotary limiting structure, the spring being fixedly connected including at least two with the snap ring, the spring is from the snap ring to remote
Direction from the snap ring extends, and the extending direction of the spring is located substantially in the axial direction of the snap ring, in the installation pair
As being above correspondingly arranged on the mounting hole for being inserted into the spring；
V-arrangement elastic slice, is arranged in each one end of the spring far from the snap ring, the opening direction of the V-arrangement elastic slice with it is described
Direction of the snap ring far from the mounting object is consistent, and the opening of the V-arrangement elastic slice is suitable for being stuck in the mounting hole backwards to institute
State the side of snap ring.
7. a kind of tolerance regulator of the nut assembly comprising anti-dropout described in any one of claims 1-6, which is characterized in that
Further include: the first bolt is suitable for screwing in first spiral shell equipped with the external screw thread that the internal screw thread with first nut matches
In mother, the hollow structure for penetrating through the both ends of the surface of the bolt is provided on the axis of first bolt；
Resilient insert is mounted in the hollow structure of first bolt, and installation passage, institute are provided in the resilient insert
The axis direction that installation passage is stated along the bolt is arranged；
Second nut is fixedly mounted relative to the mounting object, the internal screw thread direction of second nut and first spiral shell
Parent phase is anti-；
Second bolt is suitable for driving the first bolt synchronous rotation through resilient insert described in the installation passage and swelling,
Second bolt is advantageously by screwing into second nut.
8. tolerance regulator according to claim 7, which is characterized in that when first bolt screws in first nut
Approach axis and the snap ring close to the mounting object when moving direction it is consistent；First bolt and it is described into
Enter contrary one end and is provided with ring edge.
9. tolerance regulator according to claim 8, which is characterized in that the ring edge is towards the side of the snap ring
It is provided with stop block；Described jagged towards the setting of one end of the ring edge, the stop block is suitable for being placed in described lack
In mouthful.
10. according to tolerance regulator described in claim 7 or 8 or 9, which is characterized in that the resilient insert is quadrangle ring set,
Four angles of the quadrangle ring set are set as arc-shaped transition angle, and the center of each edge of the quadrangle ring set is inwardly curved
Curved camber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529139.5U CN208793428U (en) | 2018-09-19 | 2018-09-19 | A kind of Anti-falling-off nut component and tolerance regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529139.5U CN208793428U (en) | 2018-09-19 | 2018-09-19 | A kind of Anti-falling-off nut component and tolerance regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793428U true CN208793428U (en) | 2019-04-26 |
Family
ID=66210077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821529139.5U Expired - Fee Related CN208793428U (en) | 2018-09-19 | 2018-09-19 | A kind of Anti-falling-off nut component and tolerance regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307767A (en) * | 2019-07-29 | 2019-10-08 | 上海佳慕汽车零部件有限公司 | A kind of elastic construction tolerance adjustment device |
-
2018
- 2018-09-19 CN CN201821529139.5U patent/CN208793428U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307767A (en) * | 2019-07-29 | 2019-10-08 | 上海佳慕汽车零部件有限公司 | A kind of elastic construction tolerance adjustment device |
| CN110307767B (en) * | 2019-07-29 | 2024-04-30 | 上海佳慕汽车零部件有限公司 | Elastic construction tolerance adjusting device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 Termination date: 20210919 |
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| CF01 | Termination of patent right due to non-payment of annual fee |